Active NPI
John M. Vierling, MD
- Gastroenterology Physician
- Houston, TX
National Provider Identifier
1043390388
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- M8457
- Practice address
- 6620 Main St
Houston, TX 77030-2348 - Phone
- (713) 798-2500
- Fax
- (713) 798-2505
- NPI assigned
- Oct 17, 2006
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | M8457 | TX | |
| Gastroenterology Physician | 207RG0100X | M8457 | TX | Primary |
Addresses
Primary practice location
6620 Main St
Houston, TX 77030-2348
Mailing address
2 Greenway PLZ
Suite 900
Houston, TX 77046-0297
Phone (713) 798-1750
Other identifiers 3
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 175369101 | Medicaid | TX | |
| 175369102 | Other | TX | CSHCN |
| 175369103 | Medicaid | TX |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| M8457 | TX | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Baylor College of Medicine | Past | Accepting new patients |
Organizations & group practices 1
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
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NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1161043200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1702339200000",
"number": "1043390388",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2 GREENWAY PLZ",
"address_2": "SUITE 900",
"city": "HOUSTON",
"state": "TX",
"postal_code": "770460297",
"telephone_number": "713-798-1750",
"fax_number": "713-798-1144"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6620 MAIN ST",
"city": "HOUSTON",
"state": "TX",
"postal_code": "770302348",
"telephone_number": "713-798-2500",
"fax_number": "713-798-2505"
}
],
"practiceLocations": [],
"basic": {
"last_name": "VIERLING",
"first_name": "JOHN",
"middle_name": "M.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-10-17",
"last_updated": "2023-12-12",
"certification_date": "2023-12-12",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "TX",
"license": "M8457",
"primary": false
},
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "TX",
"license": "M8457",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "175369101",
"state": "TX"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "CSHCN",
"identifier": "175369102",
"state": "TX"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "175369103",
"state": "TX"
}
],
"endpoints": [],
"other_names": []
}Other providers in Houston, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 12, 2023; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.